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What size UPS do I need?

In short, you need a UPS that will support whatever you want to connect to it for as long as you would like it to run.

It is always best to allow a little overhead when sizing a UPS, you never know what else you might like to add to your system later on.  The only truly accurate method of determining the amount of power required is to connect a power meter to the equipment you wish to protect.  This is rarely convenient so many manufacturers provide a UPS Size Calculator where you can enter in the details of your equipment and the calculator will recommend a UPS based on the specifications of your equipment.

As a rule of thumb, for personal PC's allow 200W per PC, 50W per monitor and 20W per external device such as modems, routers, hard drives.  Once you have a figure allow plenty of headroom, so if you come up with 300 Watts, dont buy a 320 Watt UPS, look at around 500 Watts.

For Servers, allow about 500-800 Watts per server and 100 Watts per network switch. This is only a rough guide but it gives you a quick idea of the capacity you might require.  Obviously the servers and switches wont always be drawing this amount of power when lightly loaded.

 

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Email: sales@apcrbc.com.au

 

Phone: 1300 799 161

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